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gh-118926: Spill deferred references to stack in cases generator (#122748)

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This automatically spills the results from `_PyStackRef_FromPyObjectNew`
to the in-memory stack so that the deferred references are visible to
the GC before we make any possibly escaping call.

Co-authored-by: Ken Jin <kenjin@python.org>
This commit is contained in:
Sam Gross 2024-08-07 13:23:53 -04:00 • committed by GitHub
parent 967a4f1d18
commit 3e753c689a
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9 changed files with 176 additions and 63 deletions
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Python/bytecodes.c
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@ -1424,7 +1424,7 @@ dummy_func(
"no locals found");
ERROR_IF(true, error);
}
locals = PyStackRef_FromPyObjectNew(l);;
locals = PyStackRef_FromPyObjectNew(l);
}
inst(LOAD_FROM_DICT_OR_GLOBALS, (mod_or_class_dict -- v)) {